Fluid-compressor for motor-vehicles



, O. E, HUNT. FLUID COMPRESSOR FOR MOTOR VEHICLES. APPLICATION FILED SEPT.30,II9I8. 1,394,835, l, Y Patented oet. 25, 1921.

2 SHEETS-SHEET l. l

if 7M NIL I; xfleom HTomeuJM 0. E. HUNT. FLUID COMPRESSOR FR MOTOR VEHICLES.- APmcAUoN FILED SEPT. so, 1918. 1,394,835, Patented 001?. 25, 1921 2 SHEETS-SMM CID .m any suiuoe manner as ingiy iied in. che cylinder @R3-GND HUNT, OF EETRIT,

rfmcirreffiu, ASSIGNOR fro PACKARD Moron, CAR Colin;v

lTJD-COMLRSSOR FOR M0 TOR-VEHICLES.

eii tn of ihe `iinied States, and renderli of D roit, Wayne county. Sse luwhigun,

have invened eer-tuin new and userul mproreniens in Finid-Conipressors for Motor-Vehieies, oi which 'he oliowing is a sgeeieaien.

T he present invention reiates io compressors and more periicuhirly to *alie type iidsipied jfor use in motor vehicies to produce a pressure in the fuei tank for the purpose, of forcing the. fue-iro' the earbureter or" he moor.

The principal object of the invention is to provide a machine" of the character men.- i'ioned vvitlrqneans for'vurying the pressure to which he'gus may he compressed.

To his end he invenion consists in the provision of means for udjueing or varying the volume oi' bhe eienrnnee space of 'he compressor.

@their objects and 'features of novehsy will he zippereni from the descripzion miren in connection with ine drawings in which Figure is :in eievuion inosly in section iilus-rating one embodiment of the presentinreniien;

Fig. i a 'ransvsrse secionei eievution of he pninp'shown in l, the crank euse seing' un e'levaion 3 issl seeionai view when substaniuiiy on he line 3 3 o Fig. l;

is a sectional view rake substantialijy on hie line Aiof Fig. L

Referring;v io the drawings the numeral l() indieaes the crank case oi a compressor invention. As shown it is formed with un opening l in one side which registers with opening i2 inthe front end of the crank ease 13 ef a. hydrocarbon motor. The crzinlr case l may be seenred te Jdie crank ease 13 hy ineens oifshe hoiis .fi hoilow oyiinder "i5 is mounted on `ehe creek ease zindvseeured thereto by the studs 3.652 A cup shaped pisL-on 16, open n ehe and closed :it vthe hartem, is sildiny suitable mechanism muy be employed igor reciproeat ine: lie piston. As shown, shaft l? driven inbtiiued relation with che hydrocarbon moflor has :in eccentric i8 secured 'hereo withhe crunk ease "0. An eeeenrie rod 19 Specification of Letters Estent.

September 30, 1918.

vmuy he "inder end 3T.

uenied 0st. .25, 192i smal n0. 256,265.

undy has is free end pirotully connected to the piston 1G :is by means of "Lhe Wrist pin 2U.

Midway oi ii'is'ends the piston is formed with :in unuulur peripheral groove, 2l which hais eomiuunieuiiin with the interior of the pistou through uperures 22 in he wall hereo'i". The cylinder wail is formed withv :in inletV port QR, which is positioned to rem isier wiih ii-he groove Q1 when the piston 1s ut. the lower end of iis siro/ke. )as cleziriv illustrated in Fig. i the cylinder is Formed with a boss Q4 which has :i recess 25 formed therein. vthe open side of which is closed by u screen .26 seenr l to the boss by the cap screws Q7. rThe port Q3 lends from the recess 25 to the interior of the cylinder.

Frein he foregoing it will be seen wher the pison is :it the lower end oi .its stroke, uir' is admited to the compressor hrough the port 253 und apertures When the piston reaches he upper end of its sroke the grrom'o 2l reze'istersy (incomes ino corninunicaiion with u discharge pori. 2S 'forn ed in the wall oi: ih@ cylinder und 'elle boss :29. The outer end o' ehe pore is dosed hy u plug 30, und a duet 3l urmuged snhsud tiill)r si' right :ingles to the port hus check valve 32 disposed therein in prevent reurn iow of the .zonipressed air discharged from he cylinder. The upper end of he duct 3i is Closed by u plug 27.3. The hoss 2.() is also formed with u passage 34. leading from the duct 3l to an i. 35 which .is threaded as ut 36" for the connection of a pipe for conveying the compressed air to a point where il: is desired to be used.

The principal feui'ure of the invention consists in the provision or" means whereby the pressure io which he vuir is compressed .sulisuniully :my predetern'iined amount. As .shown iu the present embodiment :if-the invention, this object is aecom- -piished by the provision of menus for vuryingthe voiume of ihe clearance space of ille compressor. As clearly shown in the (huwings the upper end of the eylinder l5 is enlarged :it 37 und the upper open end `thereof is closed by a Cylinder head 38. As

illustrated this head has u sleere 3f) extend ingtowurd he pison which is exieriorly threaded und screwed into the enlarged eyi The interior of the sleeve 39 'is aise threaded und a partition or Plug 4U s ssrewed `herein. The ulterior 4of the noi vsleeve; thais its stroke Iform the clearance space o compressor.' It apparent'thetthc volume a chftmher in'coinriimieation with thc-interior of the cylinder and this chamber together withthe space above the piston'fwhen itis at the upper eid of of this clearance spaccmay be'varied by Tic In the operation of the compressor,y the adjusting the' partition or plug 4G within the sleeve 397.-For the purpose of holding the plug; in adjusted 'position a bolt 42' is threaded 'through the sance at its upper end adaptcdto bear against the .cylinder head.

piston is reciprocatcd as previously de scribed. When at one end 'of its 'stroke air is su plied thereto through the inlet port 23. s the piston travels toward the other .end ci' its stroke the air within the cylinder 'is compressed and discharged w en it 'reaches the nnerA end oi its travel through the discharge port 28. lf it is desired to in- Having thus described the invention what is claimed as new and desired to be secured by Letters Patent is the` character de scribed,fin combination, a hollow cylinder, a piston fitted to reciprocate therein, a head closing one end of the cylinder having a sleeve projecting toward the`piston and a I1.. In a machine of closing one cndof acuoso partition within said sleeve mounted for anial adjustment.

'2. 'In 'a machine of the character described, incombination, a hollow cylinder, a piston litted to reciproca e therein, a head closing one end of the cylinder having a sleeve projecting toward the piston, and a 1 'partition having threaded engagement with the interior or" said sleeve.

3. ln a machinof the character de-V scribed, in combination, a hollow cylinder, a piston litted to reciprocate therein, a head closing yone end of the cylinder havin a .sleeve projectinc' toward the piston, a lping adjastcbly fitted in said sleeve, and means to lock the plug in adjusted position.

4. In a machine of the character deA scribed, in combination, a hollow cylinder, a piston fitted to reciprocate therein, a head closing one end of the cylinder having a sleeve on the cylinder side thereof, a plug threaded in said sleeve, and a locking holt threaded through said ping and having one end enea il G said head Whereb 'the lne" is secured in ad'nstcd osition.

5. in a machine o' the character described, in combination, a hollow cylinder, a piston litted'to reciprocate therein, a head the cylinder having a sleeve projecting toward the piston, said sleeve being exteriorly threaded and screwed into the cylinder, and a partition Within said sleeve mounted for axial adjustment.

6. ln a machine of the character described, in combination, a hollow cylinder, a pistoniitted to reciprocate therein,'a head closing one end of the cylinder having a sleeve projecting. toward che piston, said sleeve being exteriorly threaded and screwed into the cylinder, and a partition threaded within said sleeve for axial adjustment.

In testimony whereof I aiiixmy signature.

' ORMOND E. 

